| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a laser beam machining device including an adjustment which is an adjustment which adjusts a quantity of light of a laser beam output to a photoelectric converter, and can be manufactured easily. <P>SOLUTION: A laser marking device includes an adjustment plate 100 which adjusts a quantity of light of a laser beam Ls branched by a mirror for branching. In the adjustment plate 100, at least three of a first through-hole 101-a third through-hole 103 are formed so as not to locate in the same straight line. In addition, the cross sections of each of the first through-hole 101-the third through-hole 103 are configured smaller than the cross section of a light line of the laser beam Ls, respectively. In addition, the adjustment plate 100 makes the laser beam Ls branched by the mirror for branching pass each of the first through-hole 101-the third through-hole 103, and emits the laser beam Ls made to pass to a photograph detector 71. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
